3. Micro SD mode : Control the functions of the headset MP3 player - Showing total file numbers / the file numbers of folder - Basic functions ( Play/Pause/Previous song/Next song) - Play option ( Play all files/ Play all files repeatedly/ Repeat one file/ Random play) - Set volume - Set EQ ( Normal/ Bass boost/ Ultra bass ) - Index player ( Play the index from the all files ) - Sectional repeat ( Repeated play between the selected section - good for studying language) - Adding to "My playlist" and deleting ( Adding and deleting the files in "My playlist"-Max. 20 files) - Instant play for the files in "My playlist" ( Prompt play for the files in "My playlist" ) - Folder play ( Play the files in folder ) ( For reference, it supports till to the 1 depth and maximum 30 folders.)

4. FM Radio : Control built-in radio of the headset - Radio power on/off - Set radio frequency and listen - Adding the selected frequency to "My favorite" - Managing the channel lists in "My favorite" ( Radio channel and program title change/ Delete list/ Prompt set the frequency)